Driving device for inking rollers



Jan. 13, 1931. A. w. WOOD 1,789,165

DRIVING DEVICE FOR INKING ROLLERS Filed May 15. 1928 Patented Jan. 13, 1931 UNITED STATES PATENT OFFICE HENRY A. WISE WOOD, OF NEW YORK, N. Y., ASSIGNOR T0 WOOD NEWSPAPER MA- GHINERY CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF VIRGINIA DRIVING DEVICE FOR INKING ROLLERS Application filed May 15,1928.

This invention relates to means for rotating the form rollers in an ink supply mechanism for a printing press or the like.

The principal object of the invention is to drive the form rollers in such a way as to insure a uniform supply of ink; avoid any smear that might result from slippage between the ink drum and the form roller and prevent the spread of the ink from the 1 inked part to the uninked part of the form roller and printing cylinder.

Other objects and advantages of the invention will appear hereinafter.

Reference is'to be had to the accompanying drawings in which Fig. 1 is an end view of a part of the inking mechanism of a printing press, showing a preferred embodiment of this invention, and

Fig. 2 is a side view thereof.

The form rollers in an inking mechanism for a printing press are caused to rotate by contact with the ink cylinder. On account of the gutters between the plates or an occasional open page of reading matter,

the form roller cannot be driven from the plate cylinder itself. I have provided, according to this invention, a surface on the ink cylinder contacting with a surface on the form roll for driving the latter from the former and means whereby these surfaces will be un-inked and will not be in danger of being smeared with ink from the inked portions of the cylinder and roll.

Referring to the drawings, it will be seen that I have shown the ink cylinder 10, two form rolls 11 and plate cylinder 12 in their usual positions. Instead of rotating the form rolls 11 from the inked surface of the ink cylinder, I provide a cylindrical extension 13 on one end of the form roll. which is not supplied with ink and I provide a similar extension 14 on the end of the ink cylinder for contacting with the cylindrical surface of the extension 13 for the purpose of driving the form roll in each case.

Furthermore, in order to prevent the ink from the inked surface of the roll and cylinder from spreading over to the un-inked surfaces 13 and 14, I provide grooves '15' Serial No. 277,960.

and 16 in the form rolls and ink cylinder respectively to receive any such ink and prevent its flowing up on these surfaces. These cylindrical surfaces 13 and 14 are fully as large in diameter as the inked portions of the form roll and ink cylinder respectively so that at all times the form rolls will be driven by the contact of these rotating surfaces.

It will be seen that these surfaces are always kept clear of ink on account of the grooves above described and will be depended on for driving the form rolls. Thus a uniform supply of ink is delivered from the form rolls to the printing plates on the cylinder 12 and no smear results from any slippage between the ink cylinder and the form roller.

Although I have illustrated and described only one form of the invention I am aware of the fact that modifications can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims.

Therefore, I do not wish to be limited to and described, but what I do claim is 1. In an inking mechanism, the combination with the ink cylinder and form roll, of means on said cylinder and roll, beyond the inked surface thereof, for driving the form roll from the cylinder by surface contact therewith.

2. In an inking mechanism, the combination with an ink cylinder and form roll, of a cylindrical surface on each, in contact with each other, for driving the form roll from the ink cylinder, and a space between the inked portions of said cylinder and roll and the said surfaces for preventing the ink from spreading from one surface to the other.

In testimony whereof I have hereunto afiixed my signature.

HENRY A. WISE WOOD. 

